Identification of intermetallic phases in a eutectic Al?Si casting alloy using electron backscatter diffraction pattern analysis

2004 ◽  
Vol 51 (3) ◽  
pp. 215-219 ◽  
Author(s):  
M KRAL
Keyword(s):  
Diffraction Pattern ◽  
Pattern Analysis ◽  
Electron Backscatter Diffraction ◽  
Intermetallic Phases ◽  
Casting Alloy ◽  
Electron Backscatter ◽  
Backscatter Diffraction

Identification of Phases in the Wide-Gap Region Brazed with BNi-3 Filler Metal Powder Using Electron Backscatter Diffraction

2007 ◽  
Vol 544-545 ◽  
pp. 355-358 ◽  
Author(s):  
Yong Hwan Kim ◽  
Il Ho Kim ◽  
K.T. Kim ◽  
Seung Y. Shin ◽  
S.I. Kwun
Keyword(s):  
Metal Powder ◽  
Pattern Analysis ◽  
Filler Metal ◽  
Electron Backscatter Diffraction ◽  
Ternary Eutectic ◽  
Lattice Parameter ◽  
Electron Backscatter ◽  
Binary Eutectic ◽  
Wide Gap ◽  
Backscatter Diffraction

The phases formed in the wide-gap region brazed with BNi-3 filler metal powder in IN738 superalloy were investigated by electron backscatter diffraction (EBSD). The morphology and chemical composition of the phase were investigated by field emission scanning electron microscopy (FESEM) and Auger electron spectroscopy (AES). The wide-gap region brazed with BNi-3 filler metal had a microstructure consisting of primary Ni3B, binary eutectic of Ni3B-Ni solid solution and ternary eutectic of Ni3B-Ni-Ni3Si structure. EBSD pattern analysis revealed that the Ni3B had orthorhombic structure with lattice parameter of a=0.439, b=0.522 and c=0.662 nm, and the Ni3Si phase had cubic structure with lattice parameter of a=0.350 nm.

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